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1.什么叫锚杆支护?锚杆有哪些分类? 答:锚杆支护实质上是把锚杆安装在巷道的围岩中,使层状的、软质的岩体以不同的形态得到加固,形成完整的支护结构,提供一定的支护抗力,共同阻抗其外部围岩的位移和变形。 (1)木锚杆。我国使用的木锚杆有两种,即普通木锚杆和压缩木锚杆。 (2)钢筋或钢丝绳砂浆锚杆。以水泥砂桨作为锚杆与围岩的粘结剂。
1. What is bolt support? What are the classification of the bolt? A: The bolt support is essentially the bolt installed in the surrounding rock in the tunnel, the layered, soft rock in different forms Reinforced to form a complete support structure to provide a certain degree of supportive resistance and jointly resist the displacement and deformation of the external surrounding rock. (1) wood bolt. There are two kinds of wood bolts used in our country, namely ordinary wood bolts and compressed wood bolts. (2) steel or steel wire rope mortar anchor. Cement sand paddle as anchor and rock binder.